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प्रश्न
From the knowledge of activity series, name a metal which shows the following properties:
It forms a base which is insoluble in water.
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उत्तर
Calcium
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संबंधित प्रश्न
Write a balanced equation for the following:
Iron reacts with dil. HCl
Complete the following word equation:
Calcium + water → calcium hydroxide + _________
Choose the correct option:
Hydrogen is evolved by the action of cold dil. HNO3 on
Based on the reactions of water on metals, arrange the following metals in increasing order of reactivity: iron, sodium, magnesium, zinc, calcium
Hydrogen is obtained by displacement from:
- dilute sulphuric acid
- dilute hydrochloric acid
Write equations using zinc and iron.
Why does copper not show similar behavior?
Helium is preferred to hydrogen for filling balloons because it is:
Which of the following metals does not give hydrogen with acids?
Using dilute sulphuric acid how would you differentiate between:
Copper and magnesium
How would you identify the gaseous products evolved.
State why hydrogen is not prepared in the laboratory by the action of calcium with dilute sulphuric acid.
Name the following.
The salt formed when aluminium reacts with potassium hydroxide, during the preparation of hydrogen from alkalis.
